Tablet PCs are compact, ultra-portable entertainment devices that let you read email, surf the Internet, read eBooks, view photos, play games, listen to music and watch video files. Most tablets are based on a smaller operating system, which allows you to purchase and download additional applications from supported stores. Tablet PCs do not have a CD/DVD drive and will not run Microsoft Windows or its applications. Tablet PCs function as a secondary device for casual entertainment purposes, and are not meant to replace a computer. They are ideal for use around the home and on the go with WiFi or 3-4G mobile broadband connections (pay as you go, contract may be required for service).